What Is 2019 Major League Baseball season

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Last updated: April 15, 2026

Quick Answer: The 2019 Major League Baseball season began on March 20–21, 2019, with 30 teams competing in 162 games each, culminating in the Washington Nationals winning their first World Series title by defeating the Houston Astros in seven games.

Key Facts

Regular season started on March 20–21, 2019, with games in the U.S. and Japan
Each team played 162 games over a 187-day schedule
Houston Astros led the regular season with a 107–55 record
Washington Nationals won the World Series in seven games (4–3)
The 2019 All-Star Game was held on July 9 in Cleveland, Ohio

Overview

The 2019 Major League Baseball (MLB) season marked the 144th season of the organization and featured 30 teams across the American and National Leagues. It began on March 20–21, 2019, with two games played in Tokyo, Japan, between the Oakland Athletics and Seattle Mariners, signaling MLB’s continued global outreach.

This season was notable for competitive balance, record-breaking home run totals, and a dramatic postseason run by the Washington Nationals. Despite entering the playoffs as a Wild Card team, the Nationals captured their first World Series title in franchise history, defeating the Houston Astros in a thrilling seven-game series.

Opening Day occurred on March 20–21, 2019, with the first games played in Tokyo, Japan, marking the third time MLB opened a season in Asia.
Each of the 30 teams played a 162-game regular season schedule, spanning 187 days from March 20 to September 29, 2019.
The home run record continued to rise, with a total of 6,776 home runs hit across the league, surpassing the 2017 record of 6,105.
The Wild Card format allowed two teams from each league to qualify for the postseason beyond division winners, increasing playoff competitiveness.
The World Series was played between October 22 and October 30, 2019, with the Nationals winning Game 7 in Houston to claim the title.

How It Works

The 2019 MLB season followed the standard structure of divisional play, interleague matchups, and a multi-round postseason culminating in the World Series. Each team played 162 games, with scheduling designed to balance divisional, league, and interleague contests.

Regular Season Structure: Teams played 19 games against each of their four division opponents (76 games), plus 64 games against teams from other divisions in their league, and 20 interleague games.
Postseason Qualification: Three division winners and two Wild Card teams from each league advanced, with the Wild Card Game determining one of the playoff entrants.
Home Run Derby: Held on July 8 in Cleveland, Juan Soto represented the Nationals, and Pete Alonso of the Mets won the event with 26 home runs in the final round.
All-Star Game: Played on July 9 at Progressive Field, the American League defeated the National League 4–3, with Shane Bieber earning MVP honors.
World Series Format: A best-of-seven series, with the Nationals winning Games 6 and 7 on the road after trailing 3–2, becoming the first team to do so since 2016.
Extra Innings Rule: Beginning in 2020, MLB experimented with starting extra innings with a runner on second, but this was not in effect during the 2019 season.

Comparison at a Glance

Below is a comparison of key performance metrics and outcomes between the top teams in the 2019 MLB season:

Team	Regular Season Wins	Home Runs	Postseason Result	Manager
Houston Astros	107	288	World Series Loss (4–3)	Dusty Baker
Washington Nationals	93	231	World Series Champions	Dave Martinez
New York Yankees	103	306	ALCS Loss	Aaron Boone
Los Angeles Dodgers	106	279	NLDS Loss	Doc Rivers
Minnesota Twins	101	307	ALDS Loss	Rocco Baldelli

The table highlights how regular-season dominance did not guarantee postseason success. Despite the Astros, Dodgers, and Yankees winning over 100 games, the underdog Nationals, with only 93 wins, emerged as champions, underscoring the unpredictability of October baseball.

Why It Matters

The 2019 MLB season had lasting implications for team legacies, player development, and fan engagement. It showcased the value of resilience and depth, as the Nationals overcame early-season struggles and a 19–31 start in May to become champions.

First Title for Nationals: The franchise, originally the Montreal Expos, won its first championship since relocating to Washington in 2005.
Stephen Strasburg’s Legacy: Strasburg went 5–0 in the postseason with a 1.98 ERA, becoming the first pitcher to win five postseason starts in a single year.
Home Run Surge: The league-wide total of 6,776 home runs reflected ongoing trends in launch angle and exit velocity optimization.
Managerial Impact: Dave Martinez’s leadership was credited for maintaining team morale despite mid-season slumps and injuries.
Global Reach: Opening games in Japan emphasized MLB’s strategy to expand its international audience and player recruitment.
Postseason Format Debate: The success of Wild Card teams reignited discussions about expanding playoff access in future seasons.

The 2019 season remains a benchmark for underdog triumphs and offensive firepower, remembered for both statistical extremes and dramatic storytelling on the field.